Debug: Use two command logs instead of one

Log uninteresting GS commands in secondary log

src/command_type.h

@@ -521,6 +521,7 @@ enum CommandFlags {
 	CMD_NO_EST    =  0x400, ///< the command is never estimated.
 	CMD_PROCEX    =  0x800, ///< the command proc function has extended parameters
 	CMD_SERVER_NS = 0x1000, ///< the command can only be initiated by the server (this is not executed in spectator mode)
+	CMD_LOG_AUX   = 0x2000, ///< the command should be logged in the auxiliary log instead of the main log
 };
 DECLARE_ENUM_AS_BIT_SET(CommandFlags)